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CM2N9760en_04 16 Nov 2009 Building Technologies
s 9760
97
60p
01
DESIGO™ INTEGRAL Migration
Automation station, compact series
PXC-NRUF
In existing INTEGRAL plants, you can replace compact automation units NRUE/A, NRUF/A and NRUT/A with the PXC NRUF automation station. − Same housing. − Same periphery interface (plug compatible). − Existing periphery can be assumed without a change. − Use existing panel wiring. • Compact, freely programmable automation station for HVAC and building
services plants. • Native BACnet automation station with communications
– BACnet via LonTalk – BACnet PTP (point-to-point) – Modem.
• PPC processor allows for high performance and reliable operation • Comprehensive management and system functions (alarm management,
schedulers, trends, remote management, access protection, etc.) • 64 physical inputs / outputs • Stand-alone application or for use with linked system or devices. • Supports the following operating elements:
– Room units QAX... – Local / networkable operator units – System or WEB operation via system network.
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Siemens PXC-NRUF – Automation station, compact series CM2N9760en_04 Building Technologies 16 Nov 2009
Functions
Automation stations provide the infrastructure for recording and processing system and application-specification functions and are freely programmable. Comfortable management functions are integrated in addition to control functions, e.g.:
• Alarm management with alarm routing via the entire network. Standard, basis and expanded alarm management with checked secure transmission and automated transmission monitoring.
• Scheduler programs. • Trend functions. • Remote management function. • Secured access to the entire network using individually defined user profiles and
categories. The automation stations can be freely programmed (relying closely on CEN standard 1131) in D-MAP programming language. All function blocks, provided in libraries were graphically interconnected to plant operating programs. The LONWORKS bus using internally standardized BACnet protocol is used for communications. Both peer-to-peer communication to other automation stations as well as connection to operating units PXM... are supported.
Type summary
Device Type Data point mix UI DI UO DOAutomation station for 64 physical data points
PXC-NRUF 16 24 8 16
Accessories Type designation Connecting cable between operating unit PXM10 or PXM20 and the automation station.
PXA-C1
Adapter for firmware download. PXA-C2
Programming language
Communication
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Siemens PXC-NRUF – Automation station, compact series CM2N9760en_04 Building Technologies 16 Nov 2009
Equipment combinations
Various options exist to operating automation stations PXC-NRUF: • Room device QAX... on the PPS2 interface. Up to a maximum of five room
devices QAX... (without QAX5...) can be connected. Details on PPS2 communication are described in the DESIGO Technical principles manual (Section "I/O blocks", subsection "PPS2 addressing").
• Local operator unit PXM10 *), is connected with cable PXA-C1. • Operator unit PXM20 *), is connecting with cable PXA-C1, for local operation or
for decentralized operation of an entire plant connected within a BACnet / LonTalk network.
*) Only one operator unit can be connected (PXM10 or PXM 20). The web controller PXG80-W allows for remote monitoring and operation of one or multiple DESIGO PX automation stations using a standard Internet browser.
The Web controller PXG80-WN also includes an Ethernet connection.
Technical design
Universal inputs (UI 1 ... 16)can be used for active sensor elements as well as potential-free contracts for signaling functions. Digital inputs (DI 1 … 8) allow non-potential-free reporting functions. They are electrically isolated from the system and from one another. Digital inputs (DI 9 … 16) allow reporting functions (potential-free).
Digital inputs (DI 17 … 24) allow reporting and counting functions (potential-free).
Universal outputs (UO 1 … 8) can, on the one hand, control modulating actuators, on the other hand, they can be programmed for binary switching functions via the program structure.
Relay outputs (DO 1 … 16) are designed for switching functions up to a maximum of AC/DC 42 V, 2 A.
Operation
Note
Web operation
Inputs
Outputs
4 / 16
Siemens PXC-NRUF – Automation station, compact series CM2N9760en_04 Building Technologies 16 Nov 2009
The device requires an external power supply AC/DC24V +/- 20%. It must comply with SELV / PELV requirements!
The internal DC-DC converter supplies the internal processor system and inputs/outputs with controller voltage.
DC15V /200mA is also provided for active sensors (INTEGRAL periphery). This converter also establishes electrical isolation to the AC/DC24V power supply.
The device reset concept ensures defined conditions for field devices connected to the I/Os during power-up, power-down and undervoltage.
Overvoltage protection and startup protection protect the automation station against fluctuating power.
Design
The compact construction allows you to install the automation station in narrow spaces and is particularly well suited for compact panels or for plants using integrated panels.
Metal housing. Front cover, can be opened. LED displays. Plug-in terminal blocks.
Terminal block can be plugged in to ease field device connection. Existing INTEGRAL periphery can be plugged in at the same place as before. Older INTEGRAL systems, where the terminal blocks do not fit: Use the terminal blocks delivered with the PXC-NRUF.
Power supply
Terminal blocks
Note
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Siemens PXC-NRUF – Automation station, compact series CM2N9760en_04 Building Technologies 16 Nov 2009
RUN STATUS SERVICE TX INFO9762z10
LOW BATT
LED Color Activity Function RUN Green Continuously off
Continuously on No supply present. Supply present (LED controlled by SW).
STATUS Red Continuously off Continuously on Flashes quickly
Normal condition Hardware error recognized during self test or automation station in a state of "coma". There is no valid firmware present.
SERVICE Red Continuously off Flashing Flashes in wink command rhythm * Continuously on
LONWORKS node is configured. LONWORKS node is not configured. Physical identification of the automation upon receipt of the wink command. Neuron chip faulty or service button is pushed in.
TX Yellow Flashing Data traffic on LONWORKS bus. LOW BATT
Red Continuously off Continuously on
Batteries OK (LED controlled by SW). Replace one or both batteries.
INFO Red Freely programmable.
* Wink command rhythm:
2s 1s
21s
5 Hz 5 Hz
00408
2s 1s
Identification of the automation station on the LONWORKS network: refer to "commissioning".
Disposal
The device is classified as waste electronic equipment in terms of the European Directive 2002/96/EC (WEEE) and should not be disposed of as unsorted municipal waste. The relevant national legal rules are to be adhered to. Regarding disposal, use the systems setup for collecting electronic waste. Observe all local and applicable laws.
Mounting notes
The device can be attached directly to any surface with four screws, e.g. on the panel's base plate. Plug-in screw terminal blocks are provided to connect field devices, power and bus wiring. The other interfaces are connected using the quick plug-in connections. Do not open the device. All service functions are accessible via the lid.
LED displays
Service button
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Siemens PXC-NRUF – Automation station, compact series CM2N9760en_04 Building Technologies 16 Nov 2009
Commissioning
The front cover may only be opened by instructed service staff! Comply with country-specific safety regulations and corresponding safety provi-sions to prevent personal injury or damage to property.
The DESIGO TOOLSET / XWORKS plus is used to download the plant operating program via the network (BACnet/LonTalk).
Use DESIGO TOOLSET / XWORKS plus to set control parameters and configuration data. You can also edit data visible in the network using the PXM20 operator unit.
Field devices and wiring can be tested with the operating unit PXM20 as soon as power is connected. There for loading the plant operating programs is not needed.
The DESIGO TOOLSET / XWORKS plus configures network addresses. For unique identification in the network (BACnet/LonTalk), press the service button or send a wink command to the corresponding automation station (service LED flashes).
1
43
9760z02
2
5
Lithium battery
AA Alkaline battery
Force firmware download button
Service button
Reset button
The current D-MAP program is deleted from FLASH when the Firmware Download button is pressed during restart (reset). The automation station waits a moment for the signal to activate the FWLoaders and then starts the automation station.
Press the reset button to force a restart.
Download plant operating programs
Set parameters and configurations
Wiring tests
Network connections
Firmware download
Restart
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Siemens PXC-NRUF – Automation station, compact series CM2N9760en_04 Building Technologies 16 Nov 2009
Maintenance notes
Database information is stored in SDRAM memory, that is supported by a battery (alkaline type AA). This avoids costly reloads of programs and databases follow-ing a longer power outage (up to ca. 1 month). The unused effective life for alkaline batteries is at least four years. The remaining life under load is just a few days following a "battery low" event. The real time clock is supported by a lithium battery with an effective life of at least 10 years. The LOW BATT LED is lit for insufficient load of one of the two batteries and the automation station automatically sends a system event and a device alarm. Open the blue lid to replace the batteries. You can take out the batteries for as long as you want, when the unit is powered. To prevent damage to the hardware from electrostatic discharge (ESD), use a grounded wristband to change batteries. Firmware and operating system are stored in non-volatile manner (on Flash ROM). It is easy to update the Flash ROM memory for the plant when new firmware versions become available.
Battery effective life
Replace battery
STOP
Caution!
Firmware upgrades
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Siemens PXC-NRUF – Automation station, compact series CM2N9760en_04 Building Technologies 16 Nov 2009
Technical data
General device data Operating voltage SELV / PELV AC/DC 24 V ± 20 %. Rated voltage AC/DC 24 V Frequency 0 / 50/60 Hz. Power consumption max. 26 VA. Internal fuse thermal, automated reset. Functional data Processor Motorola PPC (MPC 885). Storage location FLASH 16 MB. RAM 64 MB. Data backup during power outage Applications / Parameters (FLASH) > 10 years. Runtime data
(buffered by AA alkaline, can be replaced on the plant)
Unused: 4 years. Typically 1 month in case of supply failure (grid or AC 24 V)
Realtime clock (buffered by Lithium battery, can be replaced on the plant).
10 years.
Precision category 0.5. Sampling cycle max. 1 second. Universal inputs Can be configured in software UI 1 ... 16 A/D resolution (analog in) 16 bit.
Measured value inputs Area 0 ... 11.0 V. Input resistance 100 kΩ against –. Sensor inputs Temperature sensor
LG-Ni 1000, NI 1000, Pt 1000, T1 Measuring range – 50 ... 150 °C
Sensor electricity (pulsed) approx. 1.5 mA (peak). Resolution 0.2 K. Meas. error at 25 °C (Ni 1000, Pt 1000) max. 0.2 K (excluding wire + sensor). Measuring error at 25 °C (T1) max. 1.0 K (excluding wire + sensor). Signal input Contact voltage DC 20 ... 25 V. Contact electricity (pulsed) 7 mA (peak). Contact resistance Max. 200 Ω(closed). Insulation resistance Min. 50 kΩ (open).
Digital inputs DI 1 ... 8 Electrically isolated From system and from one another Not potential free. Area. Low < AC/DC 6V.
High = AC/DC 15.. 42 V ± 10%. Interior resistance. Ri = 4kΩ. Digital inputs DI 9 ... 16 Contact voltage. DC 20 ... 25 V. Contact current (continuous). 7 mA. Contact resistance. Max. 200 Ω(closed). Insulation resistance. Min. 50 kΩ (open).
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Siemens PXC-NRUF – Automation station, compact series CM2N9760en_04 Building Technologies 16 Nov 2009
Digital inputs DI 17 ... 24 with counting function
As DI 9 ... 16; additionally counting function: Counter frequency (symmetrical)
Min. closing/opening time incl. bouncingMax. bounce time Counter memory
Max. 25 Hz. 20 ms 10 ms 8 Bit (0...255 max. cycle time 10 s at 25 Hz)
Counter inputs must be shielded, if they count faster than 1 Hz and are routed with analog inputs in the same trunking for more than 10 m.
Universal outputs Can be configured in software UO 1 ... 8 D/A resolution (analog out) 10 bit.
Modulating Output voltage range 0 ... 11.0 V. Output current Max. 1.5 mA source,
max. 1.5 mA reduction. Digital Output voltage 0 / 10V Output current 1.5 mA
Relay outputs Number of switching outputs 16 (changeover contact) DO 1 ... 16 External fuse protection for incoming cable – Slow blow fusible link Max. 10 A – Circuit breaker Max. 13 A Circuit breaker tripping characteristic Type B, C or D to EN 60898 Contact data AC/DC switching voltage max. AC 42 V / DC 42 V
min. AC / DC 12 V
AC current rating Max. 4 A resistive, 3 A inductive Min. 4 mA at AC 42 V Min. 10 mA at AC 12 V Current on make (AC) Max. 10 A (1 s) DC current rating Max. 2 A resistive at DC 42 V Min. 10 mA resistive at DC 12V Response / dropout time 7 ms / 3 ms typical Service life of contact for AC 42 V (guide values) With 0.1 A resistive 1 x 107 switching operations With 0.5 A resistive 3 x 106 switching operations With 4.0 A resistive (N/O) 2 x 105 switching operations Reduction factor with inductive load 0.85 (cos phi = 0.6) Insulation resistance: Basic insulation
between relay outputs and system elec-tronics
AC 2500 V, to EN 60730-1
Interface room units. Interface type PPS2. Feed category 4 Baud rate PPS2 4.8 kbps. Interface LONWORKS bus. LONWORKS FTT transceiver (screw terminal). Network TP/FT-10. Baud rate 78 kbps. Protocol BACnet. Local communication (HMI, RJ45).
PXM10 (RS-232). PXM20 (BACnet/LonTalk)
• One operator unit PXM10 or PXM 20 can be connected per automation station. • LONWORKS bus instead of the RS 485 bus used in INTEGRAL plants.
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Siemens PXC-NRUF – Automation station, compact series CM2N9760en_04 Building Technologies 16 Nov 2009
Plug-in screw terminals Power supply and signals Solid or stranded wire 0.25...2.5 mm2
or 2 x 1.5 mm2. LonWorks bus Solid or stranded wire 2 x 1.0 mm2. Simply cable lengths, Universal inputs UI 1…16 Max. 100m with A = 1 mm2. and cable types Digital inputs DI 1…24 Max. 100 m with diameter 0.6 mm. Universal outputs UO 1…8 Max. 100m with A = 1.5 mm2. Relay outputs DO 1…16 Depends on load and local
regulations. Interface room units PPS2 Max. 125 m with A = 1.0 mm2. Cable type 2-core, twisted pairs, unshielded. Capacity max. 56 nF/km. Interface cable LONWORKS bus See installation guide PX, CA110396. Cable type ConCab or CAT5. Connecting cable PXM10 Max. 3 m. Classification to EN 60730 Automatic action
Pollution degree Protection class
Type 1 2 III (Device also suitable for use in protection class II equipment)
Housing type. Protection as per EN 60529 IP 20. Ambient conditions Operation Class 3K5 as per IEC 60721. Temperature 0 ... 50 °C. Humidity 5..95 % r.h. (no condensation) Transportation Class 2K3 per IEC 60721. Temperature – 25 ... 70 °C. Humidity 5 … 95 % r.h. (no condensation) Standards, guidelines Product standard and approvals Automatic electrical controls devices for
household and similar use EN 60730-1.
Special requirements for energy controllers
EN 60730-2-9
Electromagnetic compatibility Immunity (industry) EN 60730-1 Emissions (domestic) EN 60730-1 CE conformity Electromagnetic compatibility 2004/108/EC C-Tick compliance per Australian EMC
Framework Radio Emission Standard Radio Communications Act 1992 AS/NZS CISPR11
Dimensions Refer to dimensions Weight Excl. packaging packaged. 2.960 kg 3.130 kg
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Siemens PXC-NRUF – Automation station, compact series CM2N9760en_04 Building Technologies 16 Nov 2009
Connection diagrams
GND
~
CL B
CL A
24 V
UI1
CP+
+1 V5
++
++
A
9
5
11
02
03
1
1
1
1
2
2
2
2
CP
15
19
27
35
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
UI2
UI3
UI4
UI5E
DI1
DI2
DI3
DI4
DI5
DI6
DI7
DI8
++
++
1
1
1
1
2
2
2
2
1
1
1
1
2
2
2
2
1
1
1
1
2
2
2
2
UI6
UI7
UI8
I
M
F
G
H
B
C
D
N
O
P
J
K
L
01
~
+ 15
GND
( )
39
DI9
43
UI9
++
++
5
5
5
5
6
6
6
6
47
DI10
DI11
DI12
DI13
DI14
DI15
DI16
UI10
UI11
UI12
UI13
51
UI14
UI15
UI16
++
++
5
5
5
5
6
6
6
6
I
J
K
L
M
N
O
P
75
DO84
3
4
3
4
3
4
3
P
O
N
M
L
K
J
I
67
59
55
++
++
4
3
4
3
4
3
4
3
4
3
4
3
4
3
4
3
4
3
4
3
4
3
4
3
++
++
DO7
DO6
DO5
DO4
DO3
DO2
DO1
H
G
F
E
D
C
B
A
UO8
UO7
UO6
UO5
UO4
UO3
UO2
UO1
HM
I
DO168
7
8
7
8
7
8
7
8
7
8
7
8
7
8
7
P
O
N
M
MO
DEM
/ CO
M2
99
91
83
79
DI24
DI23
DI22
DI21
DI20
DI19
DI18
DI17
DO15
DO14
DO13
DO12
DO11
DO10
DO9
L
K
J
I
9760
A02
Un
iver
sal
ou
tpu
tsD
igit
al o
utp
uts
Dig
ital
ou
tpu
tsD
igit
al i
np
uts
(P
ote
nti
al f
ree
)
Dig
ital
inp
uts
(n
ot
po
ten
tial
fre
e)U
niv
ers
al i
np
uts
Un
iver
sal
inp
uts
PP
S2
LO
NW
OR
KS
Su
pp
ly
Op
erat
or
un
it
C1.1
C1.2
C1.3
C1.4
C1.5
C3.1
C3.2
C3.3
C3.4
C3.5
C3.6
C3.7
C3.8
C1.6
C1.7
C1.8
C3.9
C3.10
C3.11
C3.12
C3.13
C3.14
C3.15
C3.16
C1.9
C1.10
C1.11
C1.12
C1.13
C1.14
C1.15
C1.16
DESIGO Terminal INTEGRAL
INTEGRAL Terminal DESIGO
C2.1
C2.2
C2.3
C2.4
C2.5
C2.6
C2.7
C2.8
C5.9
C5.10
C5.11
C5.12
C5.13
C5.14
C5.15
C5.16
INTEGRAL Terminal DESIGO
C4.1
C4.2
C4.3
C4.4
C4.5
C5.1
C5.2
C5.3
C5.4
C5.5
C5.6
C5.7
C5.8
C4.6
C4.7
C4.8
DESIGO Terminal INTEGRAL
Dig
ita
l in
pu
ts (
Po
ten
tia
l fre
e)
• Observe the technical data for the relay outputs. • Local installation regulations must be observed.
STOP
Caution!
12 / 16
Siemens PXC-NRUF – Automation station, compact series CM2N9760en_04 Building Technologies 16 Nov 2009
Pin occupancy
Pin description. Pin description.
921
5Z
01
8 7 6 5 4 3 2 1
1. LONWORKS Data A (CLA).2. LONWORKS Data B (CLB).3. GND. 4. Plus 24V.
5. Unoccupied. 6. Connected to 8. 7. COM1 / TxD. 8. COM1 / RxD.
Pin Abbr. Description
1 DCD data carrier detect 2 RXD received data 3 TXD transmit data 4 DTR data terminal ready 5 GND signal ground 6 DSR data set ready 7 RTS request to send 8 CTS clear to send
01394
6789
12345
9 NC not connected
"HMI" socket (LONWORKS)
Interface Modem / COM2
13 / 16
Siemens PXC-NRUF – Automation station, compact series CM2N9760en_04 Building Technologies 16 Nov 2009
Connect field devices
This is a device using the 4-wire principle. System ground (G0) and measuring ground (– or GND) are electrically isolated. For active field devices using 4-wire technology, this connection is in the field device. For active field devices using 3-wire technology, the connection must be established separately: − Either at the terminal on the field device. − Or in existing plants, using only 3 wires: at the automation station between
one of the terminals (–) and G0.
A) Field device supply of system transformer Type Safety isolating transformer AC 230 V/AC 24 V to EN 61 558 Compulsory
specification for transformer
Fusing AC 24 V
Max. 10A slow-blow (Extra-low voltage fuse) Max. 13 A circuit breaker
Counter inputs Counter inputs must be shielded, if they count faster than 1 Hz and are laid with
more than 10 meters using analog inputs in the same cable duct.
Passive sensor (e.g. QAM... , Ni 1000) Active sensor (e.g. QFM... , humidity)
PX
C N
RU
F
976
0A0
3
AC 24 VG G0
G0G0G0GGG
24V
UO UO
UI UICP
+
CP
-
GN
D
+1
5
QAM...(Ni1000)
QFM...(r.h.)
M
G
B
M
B
M
Magnetic valves (e.g. M3P... + ZM or MX...461...).
PX
C N
RU
F 976
0A0
4
M3P... + ZM
AC 24 VG G0
G0G0G0GGG
2
1
4
3
N
24V
UO UO
UI UICP
+
CP
-
MX...461...
1
2
3
G0 (GN)
G (GL)
YM
Y
4
GN
D
+15
STOP
Note!
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Siemens PXC-NRUF – Automation station, compact series CM2N9760en_04 Building Technologies 16 Nov 2009
Motor valves
G0G
Y
1
PX
C N
RU
F
976
0A0
5
AC 24 VG G0
G0G0G0GGG
24V
UO UO
UI UICP
+
CP
-
GN
D
+1
5
2
Damper actuators (e.g. GBB161.1E).
1
PX
C N
RU
F
976
0A0
6
AC 24 VG G0
G0G0G0GGG
24V
UO UO
UI UICP
+
CP
-
GN
D
+15
2
2
1
8
GBB161.1E
B) Field device supply of separate transformers
Magnetic valves (e.g. M3P... + ZM or MX...461...).
PX
C N
RU
F
976
0A0
7
AC 24 VG G0
G0G0G0GGG
24V
UO UO
UI UICP
+
CP
-
GN
D
+1
5
M3P... + ZM
1
2
3
4
MX...461...
12
4
G0 (GN)
G (GL)
YM
Y
L N
AC 230 V
AC 24 V
G G0
STOP
Note!
Do NOT ground separate transformer
15 / 16
Siemens PXC-NRUF – Automation station, compact series CM2N9760en_04 Building Technologies 16 Nov 2009
C) Connect room units
N R... PPS2
Automation Station. Max. 5 room units (parallel). • Twisted pair bus
cable. • Interchangeable
polarity • Wire length, refer
to "Technical data".
PX
C N
RU
F
AC 24 VG G0
G0G0G0GGG
24V
UO UO
UI UICP
+
CP
-
GN
D
+1
5
976
0A0
8
N
4 3 2 1
C–
C+
CP
–
CP
+
R2
4 3 2 1
C–
C+
CP
–
CP
+
R3
4 3 2 1
C–
C+
CP
–
CP
+
R1
PPS2
• Room units are connected in parallel (maximal 5). • Must be addressed using a jumper to distinguish (address plug on the circuit
board). The address factory set to 1.
Notes
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Siemens PXC-NRUF – Automation station, compact series CM2N9760en_04 Building Technologies 16 Nov 2009
Dimensions
63
16190
11
100
45
250
6
16
250
265
292
976
0m
01
All dimensions in mm
2008 - 2009 Siemens Switzerland Ltd. Subject to change